PORT Adelaide vice-captain Ollie Wines says he remains "100 per cent committed" to the Power despite being stripped of the co-captaincy after the club bowed to the wishes of its supporters to have a solitary captain.

The Power confirmed on Friday that Tom Jonas would be the club's sole captain for the 2020 season, with Wines and Hamish Hartlett installed as joint vice-captains.

The decision was made to restore Port Adelaide's long-standing tradition of having the captain wear the No.1 guernsey.

The club's supporters opposed the move in February to have co-captains replace long-time skipper Travis Boak, who stepped down at the end of the 2018 season.

Wines had an injury-interrupted season this year, playing just 12 games due to a dislocated shoulder suffered in a water-skiing accident on Australia Day, followed by a broken ankle in round seven.

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The 25-year-old – who is contracted to the Power until the end of 2022 – said he understood why the decision to have one captain was made and he would support Jonas.

"As it stands here, I'm 100 per cent committed, it's a positive day for the club going forward," Wines told reporters.

"I'm standing next to Tom, an incredible leader for the club going forward and I'm all in."

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Wines said it became clear to himself and Hartlett that out of the three of them, that Jonas was the best equipped to handle the responsibility of becoming the sole captain.

"Tom's the most capable to lead us at this stage," he said.

"(Hartlett) and I had a fair part to play in (Jonas becoming captain).

"With Ken (coach Ken Hinkley) talking about that decision, I think it was pretty clear-cut that he was the one out of us three that was the best man for the job."

Port Adelaide is celebrating its 150th anniversary in 2020, but club chairman David Koch denied that was the reason for reverting to a solitary skipper.

"We pride ourselves on being innovative and not being afraid to try something different, but we're a club that prides ourselves on being inclusive and being based in our community," Koch said.

"We have incredibly engaged people and they made it very clear that it's one of the icons that should stay."

Hinkley said while he believed the co-captaincy model was the best thing for the football team, the wishes of the club's supporters needed to be considered.

"What you have to always consider is this is a whole-of-football-club decision, this is not just one part of the football program," Hinkley said.

"We've got 39,576 members. 

"One of their key things is they love the idea of No.1 on the jumper and we totally support that as a football club."

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Jonas – who has played 139 games for the Power – becomes the 28th player in Port Adelaide's history, encompassing both the AFL and SANFL, to wear the No.1 guernsey.

"It's an absolute honour to pull on the No.1 next year and follow in the footsteps of some of the great leaders that this club has had," Jonas said.